Continuity mistake: The size of the knife wielded by the girl during the junkie Ian scenes changes significantly from a large butcher knife in the kitchen, to a small steak knife once outside when stabbing the evil girl. (00:45:30)
Continuity mistake: Standing in the subway talking about what the creatures were, the blood from the infected tract wound from the heroin needles is completely gone, as well as the entire wound itself. (00:46:30)
